This is will earn you a lot of money in a long term scale, you won't earn a lot right away..
You want to sign up here, http://goo.gl/bJ3Wfv
You can invest, or you don't have to, I recommend investing though so you can earn more.
Once signing up, just change the language by clicking the flag on the right hand sand of the webpage..
Clicking this will make the language english..
Okay, but onto the investing.. To invest, you want to click "Investments" and then enter the amount of mBTC you want to invest, the minimum is 0.0005 BTC.
50 mBTC = 0.05 = 100k GOLD
I recommend the 0.05 Investment because this is what the guide will cover.. If you invest 0.05, buy the Red cow, the red cow will earn you much more..
100 Milk = 1 Gold, so with a investment of 0.05, and the purchase of 1 "Red" cow, here are the calculations..
Productivity
9650 milk/hour= 231.600 milk/ day = 2316 gold/day
70% Reinvest = 1621 Gold/day
30% Withdraw = 694 Gold/day = 20.820 gold/month = 0.01041 BTC/month
(without counting reinvestment and withdrawal fee)
Cost =100.000 Gold = 0.05 BTC
Income from withdraw= 0.01041 BTC/month
You got all your BTC Invested after : aprox 5 month
after 5 month you get aprox 20% profit/month
(it can be more , because my calculation not include reinvestment)'
If you need help, comment and I'll answer your questions